The Biology of Crayfish Plague Pathogen Aphanomyces astaci: Current Answers to Most Frequent Questions

Rezinciuc, Svetlana; Sandoval-Sierra, José Vladimir; Oidtmann, Birgit; Diéguez‐Uribeondo, Javier

doi:10.1201/b18723-12

Cited by 32 publications

(35 citation statements)

References 81 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Aphanomyces astaci , the infective agent of crayfish plague, is listed among 100 ‘world's worst’ invasive species (Lowe et al ., ) and causes one of the most studied invertebrate diseases of conservation relevance in Europe (Rezinciuc et al ., ). Its accidental introduction to European fresh waters is an example of the devastating consequences that may be imposed on susceptible native fauna after pathogen emergence in formerly uninvaded regions.…”

Section: Introductionmentioning

confidence: 97%

Aphanomyces astaci presence in Japan: a threat to the endemic and endangered crayfish species Cambaroides japonicus?

Mrugała

Kawai

Kozubíková‐Balcarová

et al. 2016

Aquatic Conservation

View full text Add to dashboard Cite

1. Spread of the crayfish plague pathogen, Aphanomyces astaci, by North American crayfish species is considered one of the main reasons for substantial declines and local extinctions of native European crayfish populations. Owing to human introductions, several American crayfish species have become established throughout the world, and thus pose a potential threat to indigenous crayfish populations susceptible to crayfish plague.2. In Japan, two such widespread alien species, Procambarus clarkii and Pacifastacus leniusculus, were introduced for aquaculture purposes in the late 1920s and since then successfully expanded their ranges.3. Aggressive interactions with alien crayfish along with habitat modifications have been considered primarily responsible for drastic declines in populations of the Japanese endemic crayfish, Cambaroides japonicus, observed in the last few decades. However, the presence of the crayfish plague pathogen, to which Japanese crayfish are susceptible, may be expected, and could contribute to these declines. 4. Only recently, A. astaci has been reported from Taiwan, and to our knowledge no study focusing on its presence outside of the Western Palearctic has been conducted. 5. To fill this gap, 54 P. clarkii and 47 P. leniusculus individuals from five different Japanese locations were screened using molecular methods recommended by the World Organization for Animal Health. Aphanomyces astaci DNA was detected in all studied populations, altogether in 61% and 21% of examined individuals of P. clarkii and P. leniusculus, respectively. 6. The results provide the first evidence of A. astaci presence in Japan and highlight the threat of pathogen transmission to C. japonicus populations.

show abstract

Section: Introductionmentioning

confidence: 97%

Aphanomyces astaci presence in Japan: a threat to the endemic and endangered crayfish species Cambaroides japonicus?

Mrugała

Kawai

Kozubíková‐Balcarová

et al. 2016

Aquatic Conservation

View full text Add to dashboard Cite

show abstract

“…have severe, adverse impacts on ICS (Westman et al, 2002, Twardochleb et al, 2013 resulting them being ousted from their habitats (Füreder et al, 2006;Hudina et al, 2016). Furthermore, some NICS are latent carriers of the pathogen A. astaci, causative agent of crayfish plague, which is lethal for ICS (Edgerton et al, 2004;Souty-Grosset et al, 2006;Filipová et al, 2013;Rezinciuc et al, 2015). Currently there are at least 10 NICS in Europe, of which Pacifastacus leniusculus, Orconectes limosus and Procambarus clarkia (old NICS) had been introduced into Europe before the 1980s and are now widely distributed (Holdich et al, 2009;Kouba et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Recent changes in distribution pattern of freshwater crayfish in Croatia − threats and perspectives

Maguire

Klobučar

Žganec

et al. 2018

Knowl. Manag. Aquat. Ecosyst.

View full text Add to dashboard Cite

-Analysis of Croatian freshwater crayfish populations, aiming to gather new distributional data and complement previous surveys (2005)(2006)(2007)(2008)(2009)(2010)(2011), was performed during 2014-2016, within the frame of Natura 2000 Integration Project. The research included different waterbodies across the whole of Croatia, harbouring both indigenous and non-indigenous crayfish species (ICS and NICS, respectively). Field work was conducted in 117 grid squares with dimensions 10 Â 10 km, and up to four waterbodies were surveyed per grid square, making a total of 450 studied sites. Out of those, crayfish were not recorded in 368 sites. In the sites with crayfish presence (i.e., 82), the most frequently observed ICS was Astacus astacus (registered in 33 sites) followed by Austropotamobius pallipes (16 sites), Austropotamobius torrentium (12 sites), and Astacus leptodactylus (5 sites). Concerning NICS, the majority of records were for Orconectes limosus (13 sites), followed by Pacifastacus leniusculus (2 sites), whereas Procambarus fallax f. virginalis was registered in only one locality. Comparisons of obtained data with those from previous surveys showed that NICS are progressively spreading and displacing ICS, as recorded for A. leptodactylus that was almost completely displaced by O. limosus in waterbodies of the east Croatia. Existing ICS populations are under growing anthropogenic preassure, frequently fragmented and isolated. Moreover, this survey showed that in the last decade 55% of A. astacus and 67% of A. pallipes populations disappeared mainly as a consequence of anthropogenic influence onto their habitats. Further monitoring and conservation actions for ICS should be urgently applied to mitigate negative impacts of both NICS and anthropogenic influence. (ICS et NICS, respectivement). Le travail sur le terrain a été effectué dans un quadrillage de 117 quadrats de dimensions 10 Â 10 km, et jusqu' à quatre plans d'eau ont été étudiés par quadrat, ce qui fait un total de 450 sites étudiés. Parmi ceux-ci, les écrevisses n'ont pas été recensées dans 368 sites. Dans les sites où il y avait des écrevisses (c. -à-d. 82), l'ICS le plus fréquemment observé était Astacus astacus (enregistré dans 33 sites), suivi de Austropotamobius pallipes (16 sites), Austropotamobius torrentium (12 sites) et Astacus leptodactylus (5 sites). En ce qui concerne le NICS, la majorité des signalements concernaient Orconectes limosus (13 sites), suivi de Pacifastacus leniusculus (2 sites), tandis que Procambarus fallax f. virginalis n' a été enregistrée que dans une seule localité. Les comparaisons des données obtenues avec celles des enquêtes précédentes ont montré que les NICS se répandent et déplacent progressivement les ICS, comme cela a été enregistré pour A. leptodactylus qui a été presque complètement déplacé par O. limosus dans les masses d'eau de l'est de la Croatie. Les populations actuelles d'ICS sont de plus en plus souvent exposées à une pression anthropique croissante, fragmentées et isolées. En outre, cett...

show abstract

“…Kozubíková‐Balcarová & Horká ; Rezinciuc et al . ). Overviews of the A. astaci life cycle have been provided in several reviews (e.g.…”

mentioning

confidence: 97%

Hosts and transmission of the crayfish plague pathogen Aphanomyces astaci: a review

Svobodá

Mrugała

Kozubíková‐Balcarová

et al. 2016

Journal of Fish Diseases

126

View full text Add to dashboard Cite

The crayfish plague pathogen, Aphanomyces astaci Schikora, has become one of the most well-studied pathogens of invertebrates. Since its introduction to Europe in the mid-19th century, it has caused mass crayfish mortalities, resulting in drastic declines of local populations. In contrast, North American crayfish usually serve as latent carriers, although they may also be negatively affected by A. astaci infections under some circumstances. Recent research benefiting from molecular tools has improved our knowledge about various aspects of A. astaci biology. In this review, we summarize these advances, particularly with respect to the host range and transmission. We highlight several aspects that have recently received particular attention, in particular newly confirmed or suspected A. astaci hosts, latent A. astaci infections in populations of European crayfish, and the relationship between A. astaci genotype groups and host taxa.

show abstract

The Biology of Crayfish Plague Pathogen Aphanomyces astaci: Current Answers to Most Frequent Questions

Cited by 32 publications

References 81 publications

Aphanomyces astaci presence in Japan: a threat to the endemic and endangered crayfish species Cambaroides japonicus?

Aphanomyces astaci presence in Japan: a threat to the endemic and endangered crayfish species Cambaroides japonicus?

Recent changes in distribution pattern of freshwater crayfish in Croatia − threats and perspectives

Hosts and transmission of the crayfish plague pathogen Aphanomyces astaci: a review

Contact Info

Product

Resources

About